06 mcewen safety terminology 21070331...hazardous situation ontology design pattern •...
TRANSCRIPT
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acs.org/safety
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ModelingTerminologyfor ChemicalSafety
LeahMcEwenWorkbegunatVoCamp,UniversityofMaryland,2016.11.29/30Collaborators:GaryBerg-Cross,EvanBolton,AhmedEliesh,
ChrisJakober,PhilPainter,RalphStuart
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LabSafetyModelforReportedIncidents
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DatafromReportedIncidentStrings
1. Arsine,phosphine,andtetraborane arealloxidizedexplosively byfuming nitricacid.
2. Phosphine,hydrogensulfide,andselenide allignite whenfuming nitricacidisdripped intothegas.
3. Hydrogentelluride ignites withcoldconcentrated nitricacid,sometimesexploding.
• Substances• Outcomes• Consequences• Conditions• Operations• Apparatus/equipment
https://pubchem.ncbi.nlm.nih.gov/compound/nitric_acid
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Usecases
• Supportcorequestionsintheriskassessmentdecisionprocess• Conceptualanalysisofresearchlaboratoryprocedures• Identificationofpreventionandmitigationcontrolsformultiplehazardtypes• Incidentanalysisincludingthreats,consequences,andlossofcontrol
• Annotatecollectionsofchemicalincidentdataandothertext-basedinformationrelevanttochemicalhealthandsafety• Supportuseofhazardrecognitionandevaluationtools(RAMP)• Informtemplatesforfurtherreportingandbuildknowledge-base
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DecisionProcessForSafetyAssessment
RAMP:goalistoidentifywhatandhowtoimplementsafetycontrols(mitigation)foraparticularchemicalscenario:1. RecognizeHazards– chemicaldisposition,process(andplayers)2. AssessRisk– connectingfactors(dispositions+process+
conditions)3. ManageControls– determineequipment,procedures4. PrepareforEmergency– equipment,procedures,personnel
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CoreChemicalSafetyQueries
1. Whatsubstancesmeetagivensetofcriteriaforhazardproperties?2. Whatistheconsequenceofexposingoneparticularsubstanceto
anotherunderaparticularcondition?3. Whatconditionsandtasksareassociatedwithhazardouseventsfor
agivensetofsubstances?4. Whataretheexposureroutesofsubstancesusedorgeneratedand
whatcontrolsprotecttheseroutes?5. Whatmitigationstrategiescouldbeusedtoamelioratetheeffectof
exposuretoaparticularhazard?
*basedonACSCCSSafetyAdvisoryPanelcorequestions,2016
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ModifyingtheHazardousSituation
OntologyDesignPattern
• Lawrynowicz andLawniczak.2015
• Cheathametal.2016
• VoCamp 2016
Effect
OutcomeIndicatorResponse
AppropriateResponseInformationObject
ExposureRoute
Control
Outcome
Person Substance Apparatus EventLocationType
Magnitude
PPE
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Substance/reagent
Operator
Process/operation
Outcome(intendedreaction)
Condition Form Phase
Reactionrole
Condition Apparatus/equipment
Condition
AdverseEvent
Outcome(unintendedreaction)
ExperimentProcessFactors
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AnalyzeData(ChemicalProcedureparser)
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SafetyReporttoStructuredData
Startwithfreetext,subjectedtoNLPanalysisandharmonizedwithSafetyTemplateModel
Text
PopulatedTemplate
Template
AnalyzedText
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DiscourseRepresentation“Anexplosionoccurredduringanattempttopreparebromoform fromacetonebythehaloform reaction.”
Presutti et.al,2012
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GOAL:associatepatternsofthesefactors
1. Arsine,phosphine,andtetraborane arealloxidizedexplosively byfuming nitricacid.
2. Phosphine,hydrogensulfide,andselenide allignite whenfuming nitricacidisdripped intothegas.
3. Hydrogentelluride ignites withcoldconcentrated nitricacid,sometimesexploding.
• Substances• Outcomes• Consequences• Conditions• Operations• Apparatus/equipment
https://pubchem.ncbi.nlm.nih.gov/compound/nitric_acid
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Whatnext?
Processmoredata
Refinetemplate
Reviewwithsafetycommunity
Annotateandsearch